/* first assign web fonts */

@font-face {
    font-family: 'SeoulHangang CB'; 
    src: url('../SeoulHangangCondensed-Bold.ttf') format('truetype');
    }

@font-face {
    font-family: 'SeoulHangang CBL'; 
    src: url('../SeoulHangangCondensed-BoldL.ttf') format('truetype');
    }

@font-face {
    font-family: 'SeoulHangang CEB'; 
    src: url('../SeoulHangangCondensed-ExtraBold.ttf') format('truetype');
    }

@font-face {
    font-family: 'SeoulHangang CL'; 
    src: url('../SeoulHangangCondensed-Light.ttf') format('truetype');
    }

@font-face {
    font-family: 'SeoulHangang CM'; 
    src: url('../SeoulHangangCondensed-Medium.ttf') format('truetype');
    }

/* go on with normal style definitions */
body {
    font-family: 'SeoulHangang CM'; /* this is only an example for one style */
    
    /* setup OpenType features */
    font-feature-settings: ;

    /* vendor prefixes */
    -webkit-font-feature-settings: ;
    -moz-font-feature-settings: ;
    -moz-font-feature-settings: ;
    -ms-font-feature-settings: ;
    -o-font-feature-settings: ;
    
}
    

/* language tag */
<html lang="">

...

</html>